While authorities believe the two barricaded themselves inside, the spokesman said they couldn’t be sure, which prompted several area roads to be closed to traffic.

At the corner of Waneta and Forsell roads, Zillah law enforcement officers stood guard with tactical rifles.

At least three armored vehicles parked near the entrance to the driveway, in addition to Washington State Patrol troopers, Union Gap, Sunnyside and other law enforcement officers.

Forsell Road was initially closed between Waneta and Sunnyside-Mabton Road, but reopened about 2 a.m. to Den Boer Road.

The red and blue glow of law enforcement lights from vehicles patrolling the area pierced the dark night.

The sound of barking dogs was interrupted by the boom of period concussion grenades or the negotiator barking orders over a megaphone.

“We are the police department. We have the place surrounded and we are not leaving,” the negotiator said. “Come on out. We’re not going anywhere. Come out, hands up.”

The negotiator repeaed he would guarantee the suspects’ safety if they followed his commands.

“Nobody’s gotten hurt,” he said. “We want to keep it that way. We know you’re in there. Inside 3830 Forsell Road, it’s time to give up. You’re probably tire of hiding about now. If you follow the instructions given to you, I can guarantee your safety.”